Electromagnet for Demo Manufacturer,Supplier and Exporter in India
Product Code : EL-PL-12431
Jlab Export is a leading Electromagnet for Demo Manufacturer,and suppliers in India
Electromagnet for Demo (code EL-PL-12431) is a U-shaped demonstration electromagnet: an iron core of circular section with both arms wound in enamelled copper wire, the two coils joined in series, plus an armature and a carrying hook. It works on 3–6 V DC from cells or a low-voltage supply. Built in Ambala, India, by JLab, it is meant for classroom work on magnetism.
Specifications
| Parameter | Detail |
|---|---|
| Model | JL385/091 |
| Core | Iron, U-shaped, circular section |
| Coils | Enamelled copper wire on both arms, joined in series |
| Fittings | Armature and carrying hook |
| Supply | 3–6 V DC |
| Quality check | Each electromagnet is visually inspected before dispatch |
| Pack quantity | Each (sold individually) |
| Minimum order quantity | 10 units |
| Dispatch time | Usually 4–6 working days |
| Product code | EL-PL-12431 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
Why One Arm Becomes North and the Other South
The coils are wound and joined so that, seen from the pole faces, the same current circles the two arms in opposite senses, making one face a north pole and the other a south pole. The right-hand grip rule predicts which is which, and a plotting compass confirms it; reversing the supply swaps them. With the armature laid across both faces, the iron forms an almost closed path for the magnetic flux, which is why the armature is held far more firmly than by one pole alone.
Running the Demonstration
Connect the coils to the DC source through a key. Close the key and the armature is pulled on; open it and the armature falls away, since the iron keeps little magnetism once the current stops. Compare how firmly it is held at 3 V and at 6 V: the larger current gives a stronger magnet, because the field of a coil grows with the current and with the number of turns. Keep the key closed only for the demonstration itself, as the coils warm up if current flows for long.
Related Magnetism Items
- Magnetic Compass Small Size — small glass-faced compass for identifying the two poles.
- One Way Key — plug key for switching the coil current on and off.
- Solenoids with Cores — enamelled copper wire solenoids with cores, 12 V maximum.
- Electromagnet with Transformer for Sonometer — electromagnet with its own transformer for sonometer work.
Magnetism and electricity apparatus continues in Physics Lab.
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Last updated: 26 October 2026
